Erase all data and content, Iphone 4? Will I have to sync to Itunes?

So the iphone 4 i'm posting from right now was my aunts, she gave it to me. So it was logge into her information. I thougt i did what i would have to do. I can download apps from my apple id but when i ask to update all it prompts me for her password which i do not know. I'm planning on using the erase all content and settings function from the phone and i do not have itunes as i'm using ubuntu, i do not plan on restore all my songs and apps, will i have to sync the phone to itunes to be able to use it again

Actually… I think you do have iTunes

Look up

PlayonLinux

Install iTunes try that

If you just want to manage music you can use Banshee i could use it on my ipad infact i will do that now